TSB N262556930 — Chevrolet and GMC Service campaign
N262556930 is a service campaign on file with NHTSA for 2 Chevrolet and GMC models, 2026 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. Certain vehicles may have a condition in which the transfer case drive chain sprocket is cracked. Dealers are to replace the transfer case.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Worth checking your VIN against. N262556930 is filed as a service campaign, which unlike an ordinary bulletin can mean free or reimbursed work when a vehicle qualifies. Ask a dealer using the document ID below, and check open recalls separately at nhtsa.gov/recalls.
Vehicles and model years N262556930 names
| Vehicle | Model years |
|---|---|
| Chevrolet Colorado | 2026 |
| GMC Canyon | 2026 |
Every document filed under N262556930
| Document ID | Filed | Type |
|---|---|---|
| N262556930 | June 2, 2026 | Service campaign |
What N262556930 covers
Transmission & drivetrain — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB N262556930?
N262556930 is a service campaign filed with NHTSA by Chevrolet and GMC, covering 2 Chevrolet and GMC models across the 2026 model years. NHTSA's summary reads: Certain vehicles may have a condition in which the transfer case drive chain sprocket is cracked. Dealers are to replace the transfer case.
Which vehicles does N262556930 cover?
NHTSA's file names Chevrolet Colorado (2026); GMC Canyon (2026). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB N262556930 a recall, and is the repair free?
N262556930 is filed as a service campaign, not a recall — but this is the kind of communication that can mean free or reimbursed work if your VIN qualifies. Take the number to a dealer and ask. Recalls are separate and always free; check yours by VIN at nhtsa.gov/recalls.
How do I get the full text of N262556930?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under N262556930, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under N262556930. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.